As far as electrical distribution systems are concerned, there is a bit of complexity involved. There is no perfect system and same can be said of distribution systems. There are many factors that can trigger overcurrent. These factors include deterioration, environmental factors, and damaging equipment. Without an overcurrent protection device, damages and injuries are inevitable. Before choosing an overcurrent protection device, you must have an idea of the voltage rating of your equipment.

Overcurrent can happen in two forms. These are short circuit and overload current. In overload current, the current surpasses what equipment operates with. When a short circuit occurs, it means current is flowing through an undefined path. With an overcurrent protection device, you can handle both situations.

Types of overcurrent protection devices

Fuses and circuit breakers are the most common types of overcurrent protection devices.


Fuses are made up of metal wires. When too much current travels through, this metal wire melts and prevent damage to every gadget or device connected to the fuse. Fuses are available in different voltage and current capacity.

Circuit breakers

There are different types, sizes, and shapes of circuit breakers. However, they all do the same job. When the breaker senses an unhealthy current situation, it trips and flow of current is discontinued. An advantage of circuit breakers over fuses is that breakers can be reset to their original state after tripping but a fuse has to be replaced.

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